Okay, sorry I just saw that this was not clear.
On the kite shape, make the longer side be 2.5".
Make the short side be 2".
From point to point (where I marked the 90 degree circle) measure approximately 3.25"
You'll have to play a bit by folding a piece of paper in HALF then cutting into a kite shape -- sort of like we used to cut out hearts and snowflakes as kids.
Remember to make that angle between the 2.5" and the 2" sides be 90 degrees, a right angle.
Jan in VA